Cobra needle/pick up for Wurlitzers on 45 rpm -1100 /1250 /1400 /1500 /1550 /1600 /1700 /180 /1900 /2000 /2100 /2104 /2150 /2200 /204 /2250 /2300series mono /2400 series mono.Currently the Cobra is out of production. No other pick up is compatible.The only alternative is to convert the cobra system to a normal ceramic system. To do this the arm has to be converted(modified) to be able to take the correct cartridge , the lead to the amp changed, and the input circuitry of the amplifier modified to accept the change.All this means a conversion in the workshop with some costs involved.Until the cobras are made again it is the only way forward but unfortunately the tone arm will not be able to accept a cobra again,once converted the jukebox will have to stay like that. The big plus is ++ your jukebox will sound better and record wear will be less ++